"""
categories: Modules,os
description: ``getenv`` only allows one argument
cause: Unknown
workaround: Test that the return value is ``None``
"""
import os
try:
    print(os.getenv('NEW_VARIABLE', 'DEFAULT'))
except TypeError:
    print('should not get here')
    # this assumes NEW_VARIABLE is never an empty variable
    print(os.getenv('NEW_VARIABLE') or 'DEFAULT')
